目的调查妊娠期龈炎的患病率与妊娠时间的关系。方法对１９９５年１月到１９９６年４月间来诊的７００名孕妇进行问卷调查及临床检查。结果妊娠期龈炎患病率为７３．５７％，其中妊娠早期为６７．４９％；中期为７４．１９％；后期为７９．１７％。妊娠期龈瘤患病率为０．４３％。结论随着妊娠时间的延长，妊娠期龈炎的患病率也提高，提示加强孕妇口腔卫生宣传的重要性 Objective To investigate the relationship between the prevalence of gestational gingivitis and gestational time. Methods A total of 700 pregnant women from January 1995 to April 1996 were surveyed and clinically examined. Results The prevalence of gingivitis in pregnancy was 73.57%, of which 67.49% in early pregnancy, 74.19% in middle period and 79.17% in late period. The prevalence of gestational gingival disease was 0.43%. Conclusion With the extension of pregnancy, the prevalence of gingivitis in pregnancy also increased, suggesting the importance of strengthening the oral health promotion of pregnant women